While up questing in Mor Dhona, I saw the Potent Silencing Potion as a quest reward, and I really have to wonder if the duration stated on it is correct.

For those that have not seen it, the potion causes a 1s Silence, on a 2m cooldown.

With that short duration, it is not better than ability stuns on a much lower cooldown outside of some really specific situations, such as stun immune mob with a nasty spell with a decent cast time.

So was it intended to only be 1s or is there a typo in the tooltip?